2 2 4. The graph shows the volume, V, of gasoline left in a car's tank after a distance travelled, d, in hundreds of kilometres. Fuel in Tank (L) 72 60 48 36 24 12 0 100 Rate of Fuel Consumption 200 300 400 Distance (km) a. Determine the domain and range of the relation using set builder notation or interval notation. 500 600 700 b. Is the data represented by the relation continuous or discrete? Explain.